[Bug 129260] large files become temporarily corrupt

Joseph Fisk mdmbkr at gmail.com
Mon Jul 30 16:22:12 UTC 2007

Public bug reported:

Binary package hint: linux-image-2.6.15-28-amd64-server

When trying to load a large (5GB) sql file into mysql, mysql errors out,
segfaults, or the entire system locks up hard.

In the error or segfault case, examining the input file at the location
where mysql crashed reveals corruption that wasn't present before trying
to load into mysql.

Rebooting the system seems to remove the corruption.  The corruption
doesn't appear unless mysql attempts to load the file.  The file is set
to read-only.

This is happening on a dual dual-core opteron system with 8GB
registered/ecc memory running up-to-date LTS.  It also happens on
another nearly identical system running up-to-date LTS.  Both can run
memtest with no errors (the first ran for almost 70 passes before I
stopped it).

It does not happen on a third nearly identical system which is running
out-of-date Breezy Badger (w/64 bit kernel).

I started a thread about this problem at
http://ubuntuforums.org/showthread.php?p=3101571 , but another user
suggested it was turning into a bug report.  Some more background info
is available there.

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Undecided
         Status: New

large files become temporarily corrupt
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